在C#程式中访问网络路径

程序内如何访问网络路径

// 定义NETRESOURCE结构
[StructLayout(LayoutKind.Sequential)]
public class NETRESOURCE
{
    public int dwScope = 0;
    public int dwType = 0;
    public int dwDisplayType = 0;
    public int dwUsage = 0;
    public string lpLocalName = null;
    public string lpRemoteName = null;
    public string lpComment = null;
    public string lpProvider = null;
}

// P/Invoke声明WNetAddConnection2方法
[DllImport("mpr.dll")]
private static extern int WNetAddConnection2(NETRESOURCE netResource, string password, string username, int flags);

// P/Invoke声明WNetCancelConnection2方法
[DllImport("mpr.dll")]
private static extern int WNetCancelConnection2(string name, int flags, bool force);

private static void TestMethod()
{
    string remotePath = @"\\127.0.0.1\20240603";
    string username = "Administrator";
    string password = "123456";

    DisconnectFromRemote(remotePath);

    // 连接到共享文件夹
    int result = ConnectToRemote(remotePath, username, password);

    if (result == 0)
    {
        Console.WriteLine("Connected to remote folder successfully.");

        // 示例：读取共享文件夹中的文件
        string filePath = Path.Combine(remotePath, "test.txt");
        if (File.Exists(filePath))
        {
            string content = File.ReadAllText(filePath);
            Console.WriteLine($"Content of {filePath}:");
            Console.WriteLine(content);
        }
        else
        {
            Console.WriteLine($"File {filePath} does not exist.");
        }

        // 示例：在共享文件夹中创建文件
        string newFilePath = Path.Combine(remotePath, "newfile.txt");
        File.WriteAllText(newFilePath, "Hello, world!");
        Console.WriteLine($"File {newFilePath} created.");

        // 断开连接
        DisconnectFromRemote(remotePath);
    }
    else
    {
        Console.WriteLine($"Failed to connect to remote folder. Error code: {result}");
    }
}

// 方法：连接到远程共享文件夹
private static int ConnectToRemote(string remotePath, string username, string password)
{
    NETRESOURCE netResource = new NETRESOURCE
    {
        dwType = 1, // 1 表示DISK驱动器
        lpRemoteName = remotePath
    };

    // 调用WNetAddConnection2连接
    int result = WNetAddConnection2(netResource, password, username, 0);

    return result;
}

// 方法：断开与远程共享文件夹的连接
private static void DisconnectFromRemote(string remotePath)
{
    // 调用WNetCancelConnection2断开连接
    int result = WNetCancelConnection2(remotePath, 0, true);

    if (result == 0)
    {
        Console.WriteLine("Disconnected from remote folder successfully.");
    }
    else
    {
        Console.WriteLine($"Failed to disconnect from remote folder. Error code: {result}");
    }
}

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